Luthbe pulliam



L.- PULLIAM. Vehicle-Spring.

Pa t'ented April 27,1880.

Inventor,

N. PErER& FNO NOQRAPHER, WAH!NGTON, D, c.

UNITED STATES PATENT OFFICE.

LUTHER PULLIAM, OF MIAMI, MISSOURI, ASSIGNOR OF ONE-HALF OF HIS RIGHT TOGEORGE G. DUGGINS, OF SAME PLACE.

VEHICLE-SPRING.

SPECIFICATION forming part of Letters Patent No. 226,929, dated April27, 1880. V

Application filed February 3, 1880. I

To all whom it may concern:

Be it known that I, LUTHER PULLIAM, of Miami, Missouri, have made a newand useful Improvement in Bolster-Springs, of which the following is afull, clear, and exact description, reference being had to the annexeddrawings. making part of this specification, in whicl1 Figure 1. is aview, in perspective, of the IO improved spring in position upon thebolster; Fig. 2, a perspective, showing the arrangement when two of thesprings are used upon the same bolster; Fig. 3, a vertical longitudinalsection taken on the line as x of Fig. 4, and

Fig. 4 a vertical transverse section taken on the line y g of Fig. 3.

The same letters denote the same parts.

The present invention is an improvementin bolster-springs, and isespecially adapted to farm-wagons.

It consists, mainly, in a pair of elliptic springs, arranged side byside, and united to a saddle that rests upon the bolster. The springs,when in position, are parallel to the bolster and partly below the topof the bolster, and in use they do not bear upon or against the bolster.

More particularly described, A represents the saddle or yoke, consistingof the part a,

0 which rests upon the bolster B, and projections at a, which stand outfrom the portion a near or at the lower end thereof.

0 0 represent two elliptic springs attached rigidly to the projections aa. This brings 5 thesprings partly below the top b of the bolster.

The wagon-bed (not shown) rests upon the springs. As the latter are madedetachable both from the bolster and wagon-bed, the two 40 parts 0 G ofthe improved spring are united at the top by a plate, D, the wholeconstruction forming what may be termed a double elliptic spring.

As the spring is pressed down in use the upper and lower parts, 0 c ando 0, can never 5 be brought together, as the wagon-bed or plate D restsupon the bolster top a before the two parts of the spring meet. Thespring is thus kept from wearing. No abrasion either of the upper andlower portions of the spring upon '50 each other, or of either portionupon the bolster, can occur, and the liability of'the spring to break ismaterially lessened.

As shown in Fig. 1, a single construction is used and arranged at thecenter of the bolster. Two, however, of the improved springs canbe usedupon the same bolster, and they can be arranged as in Fig. 2, and whenthus arranged the plate D may be notched at d d to receive the standardsE E.

To keep the spring in place upon the bolster, the saddle, upon its underside, is furnished with projections a a which engage in correspondingsockets b b in the bolster.

I claim- 1. As a new manufacture, the herein-described double ellipticsprin g, consisting of the elliptic springs O G, saddle A, and plate D,said spring being rigidly attached to said saddle and plate,substantially as set forth.

2. The combination of the springs O O, saddle A, plate D, having thenotches d d, bolster B, and standards E E, substantially as described.

3. The combination of the springs O U. Sad

